A collection of essays on speech act theory à la Wunderlich. Contains alternative versions (in German) of D. Wunderlich (1976: 'Towards an integrated theory of grammatical and pragmatical meaning', 1976: 'Sprechakttheorie und Diskursanalyse', 1977: 'Assertions, conditional speech acts, and practical inferences', 1977: 'On problems of speech act theory'), next to a paper on the basic theses of linguistics according to Wunderlich; a paper on questions and question sentences, and a paper on developments of discourse analysis.